High-power forward Raman amplifiers employing low-pressure gases in light guides. II

Experiments

Mick Shaw, Jouni Partanen, Yoshiro Owadano, Ian Ross, Elizabeth Hodgson, Chris Edwards, Fergus O'Neil

Research output: Contribution to journalArticleScientificpeer-review

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Abstract

An experimental study of a high-power forward Raman amplifier pumped by a multibeam KrF laser is presented. The active medium is either CH4 at 3-bar pressure or H2 at 1-bar pressure. As many as 56 pump beams confined in a light guide were combined into a single low-divergence Stokes beam. In CH4 a gain of up to 300 and a power-conversion efficiency of 70% was obtained. The maximum Stokes output energy was 8.4 J. The dependence of gain on pump bandwidth was investigated in H2. A gain of 500 and a conversion efficiency of 65% were obtained. The maximum output energy was 5.0 J.

Original languageEnglish
Pages (from-to)1466 - 1475
Number of pages10
JournalJournal of the Optical Society of America B: Optical Physics
Volume3
Issue number10
DOIs
Publication statusPublished - 1986
MoE publication typeNot Eligible

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amplifiers
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bandwidth
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lasers

Cite this

Shaw, Mick ; Partanen, Jouni ; Owadano, Yoshiro ; Ross, Ian ; Hodgson, Elizabeth ; Edwards, Chris ; O'Neil, Fergus. / High-power forward Raman amplifiers employing low-pressure gases in light guides. II : Experiments. In: Journal of the Optical Society of America B: Optical Physics. 1986 ; Vol. 3, No. 10. pp. 1466 - 1475.
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abstract = "An experimental study of a high-power forward Raman amplifier pumped by a multibeam KrF laser is presented. The active medium is either CH4 at 3-bar pressure or H2 at 1-bar pressure. As many as 56 pump beams confined in a light guide were combined into a single low-divergence Stokes beam. In CH4 a gain of up to 300 and a power-conversion efficiency of 70{\%} was obtained. The maximum Stokes output energy was 8.4 J. The dependence of gain on pump bandwidth was investigated in H2. A gain of 500 and a conversion efficiency of 65{\%} were obtained. The maximum output energy was 5.0 J.",
author = "Mick Shaw and Jouni Partanen and Yoshiro Owadano and Ian Ross and Elizabeth Hodgson and Chris Edwards and Fergus O'Neil",
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High-power forward Raman amplifiers employing low-pressure gases in light guides. II : Experiments. / Shaw, Mick; Partanen, Jouni; Owadano, Yoshiro; Ross, Ian; Hodgson, Elizabeth; Edwards, Chris; O'Neil, Fergus.

In: Journal of the Optical Society of America B: Optical Physics, Vol. 3, No. 10, 1986, p. 1466 - 1475.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - High-power forward Raman amplifiers employing low-pressure gases in light guides. II

T2 - Experiments

AU - Shaw, Mick

AU - Partanen, Jouni

AU - Owadano, Yoshiro

AU - Ross, Ian

AU - Hodgson, Elizabeth

AU - Edwards, Chris

AU - O'Neil, Fergus

PY - 1986

Y1 - 1986

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AB - An experimental study of a high-power forward Raman amplifier pumped by a multibeam KrF laser is presented. The active medium is either CH4 at 3-bar pressure or H2 at 1-bar pressure. As many as 56 pump beams confined in a light guide were combined into a single low-divergence Stokes beam. In CH4 a gain of up to 300 and a power-conversion efficiency of 70% was obtained. The maximum Stokes output energy was 8.4 J. The dependence of gain on pump bandwidth was investigated in H2. A gain of 500 and a conversion efficiency of 65% were obtained. The maximum output energy was 5.0 J.

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